Question

I was confused on 3 questions on my homework, so I'm sorry in advance.1. 8m^3+4m^2+12. ab+2a+5b+103.3x^2+19x+26

Answer 1

Its a third degree equation

8m^3+4m^2+1 = 0

Factorize by m^2

m^2 •( 8m + 4 ) = -1

Part 2

ab + 2a + 5b + 10

Factorize

a•( b + 2) + 5b + 10

b •(a + 5) + 2a + 10

Part 3

3x^2 + 19x + 26

Find

√( 19^2 - 4•3•26 )= √ 49 = 7